So here are few ideas. None of this is revolutionary, but if you are not doing this then you are simply wasting your money on other stuff.
1. Social Media: In my opinion the most important aspect of marketing nowadays.
- Write articles and reviews on medical tourism related stuff and then share them social bookmarking sites last one is a medical tourism specific social bookmarking site and you will most probably get very relevant traffic from there.
- become active on medical tourism communities. If you are reading this then you are already doing this.
2. I would actually say that keyword research can be very important if you get creative and use the tools correctly. Yes there are many big companies out there but I have found incredible gaps in competition for this field. Building http://www.healthcheckcostarica.com was a pure endeavor in SEO and keyword research, and the site is incredibly well ranked and we have yet to open our doors for business nor promoted the site. There are specific procedures out there with millions of monthly searches and no advertising competition. One could create an entire niche business based on this information. Good luck but do not neglect key word research.
3. Depending on your service and products choose the right people to get in touch with. eg.linkedin might help you get in touch with med. toursim professionals but not patients, Healism.com and Medtrawell.com are good places to get in touch with patients so make sure you have some articles and posts there. finally medical tourism city is a good place to hang out but in my opinion it can do with some more activity.